METHOD FOR DISPLAYING SELF DIAGNOSTIC RESULT OF ENGINE CONTROLLER

PURPOSE: To surely perform priority control in signals between devices by detecting collision of transmitting data when a transmitting signal and a receiving signal of serial signals do not agree with each other or when a framing error occurs. CONSTITUTION: An engine controller 101 and a transmissio...

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Bibliographische Detailangaben
Hauptverfasser:	NAGAI YASUHITO, KATOUGI KOUZOU
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING COMBUSTION ENGINES CONTROLLING COMBUSTION ENGINES HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS LIGHTING MEASURING MECHANICAL ENGINEERING PHYSICS TESTING TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR WEAPONS
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Beschreibung
Zusammenfassung:	PURPOSE: To surely perform priority control in signals between devices by detecting collision of transmitting data when a transmitting signal and a receiving signal of serial signals do not agree with each other or when a framing error occurs. CONSTITUTION: An engine controller 101 and a transmission controller 102 are connected to a K-line which is a connection line with a generic scanning tool GST) by a wired OR and coupled to GST. Start stop synchronization type data transmission is performed by taking potential of voltage VB or a ground GND in a state where K-line is pulled up. Collision of transmitting data is detected when a transmitting signal and a receiving signal of the serial signals do not agree with each other or when a framing error occurs. Thereby since a result of self diagnosis can be known through a plurality of controllers and one transmission line, hardware can be simplified and unified data processing can be performed.